What is…
brimstone

Origin of the word “brimstone”: It comes from the Old English “brynstan,” from “brin” (stem of brinnen “to burn”), plus “stan” (stone).

It is commonly accepted that brimstone is sulphur which is commonly found on the brims (rims) of volcanos. This flammable mineral is found in quantities on the shores of the Dead Sea and to the south nearby.

The cities of the plain were destroyed by a rain of fire and brimstone (Genesis 19:24-25). A great deal of sulphur is today found in the area where Sodom was located, south of the Dead Sea.